Hand stamps



Dec. 7, 1965 c. E. CARLSEN HAND STAMPS Filed March 29, 1965 INVENTOR.CARL E. CARLSEN ATTORNEY l H W United States Patent 3,221,647 HANDSTAMPS Carl E. Carlsen, 867 3rd Ave., New York, N.Y. Filed Mar. 29,1963, Ser. No. 269,025 4 Claims. (Cl. 101-125) This invention is acontinuation, in part, of the applications for patents, Ser. Nos. 72,667and 223,293, filed respectively Nov. 30, 1960 (and allowed) and Sept,10, 1962, now U.S. Patents 3,101,048 and 3,103,879, and constitute incombination with the features disclosed in the latter and the newfeatures added herein, a further improvement in hand stamps, as will beset forth hereinafter.

In the present invention, a hand stamp comprises two parts, which mayeasily be locked together; a feature especially suitable in smallstamps, because it will expose one part, that is the printing cylinder,to be completely re-inked from the inside thereof, without removing thestencil.

Furthermore this construction facilitates the easy cleaning of thedevice, as each part may be cleaned separately with no interference byany attached parts; a feature most desirable in a small stamp.

Another advantage of this construction is that the actual printing curveof the device is herein more flat than those commonly used, whereby thenecessary rolling of the stamp would be shorter, and the pressureapplied to the ink-storage pad would be more direct and effective; atthe same time a more nearly flat curvature, incidental to thisconstruction, would have the tendency to reduce the needed pressure onthe storage pad, and consequently a stamp with a more nearly flatcurvature would be easier to operate.

In the drawing, where similar characters of reference indicatecorresponding parts:

FIGURE 1 is an exploded view showing two parts comprising my stampdevice.

FIGURE 2 is a top plan view of the inside of the bottom part of my saiddevice.

FIGURE 2a is a detail view, showing a member adapted to apply pull to astencil.

FIGURE 3 is a perspective view of my device assembled.

FIGURE 4 is an enlarged transverse sectional view taken on the line 4-4in FIGURE 3.

FIGURE 5 shows a box adapted to enclose a hand stamp, with accessories;and having the top or lid of said box made as a printing base, as shownin section in said figure.

Referring more particularly to the drawing, the numeral indicates theupper part of my stamp device, having attached thereto a handle 11.

The said upper part is formed with an extended projection 12 adapted tobe received by a slot 13 in the lower part 14 of said stamp device.

An ink absonbing storage pad 15 is permanently secured underneath theupper part 10, as shown in FIGURE 1 in dotted lines, and in FIGURE 4.

The lower part 14 of the stamp device shown in FIG- URE 1 is a printingcylinder formed with perforations 16.

The said printing cylinder 14 is at each end formed with cut-awayportions 17, 17 to permit a printing pad 18 to extend beyond saidprinting cylinder and thereby prevent the latter from touching thestencil 19.

The said printing cylinder has in one of its sides a small depression20, which forms a means for locking the parts 10 and 14 together, afterthe extended projection 12 has been made to engage the slot 13.

The printing cylinder 14 is further formed with prongs 22, 22 adapted toengage the slots 25, 25 for securing the stencil 19 to the printingcylinder 14; said stencil is 3,221,647 Patented Dec. 7, 1965 wrappedaround the outer surface of the part 14 and kept under stress by meansof a flexible member 23 attached to a metal strip 24.

The reenforcing papers 26, 26 are, as shown at 27, reversely bentthereby forming an opening 29 adapted to receive said metal strip 24with the flexible part 23 which is stressed over the extended part 21,thereby applying a pull to the stencil.

In order to lock the two parts flexibly together the extended part 12 isinserted in the slot 13 on the starting side of the device; the upperedge of said slot serves the purpose of locking, and the slot is made solarge that it will permit part 12 to move freely downwardly and thuspermit part 10 to press upon the storage pad 15. A similar lockingfeature is applied to the front side of the stamp where the edge of part10 is forced below the depressed part 20 by which it is locked, leavingat the same time said part 10 free to press farther down upon thestorage felt.

In order to open the lock, place one hand on the edge of the springyU-shaped printing cylinder 14, while applying a rearward pressure uponthe handle with the other and.

In applying the ink, the storage pad 15 is saturated with ink and thetwo parts are locked together, while some ink is applied to the printingpad, and the stencil attached.

In order to apply fresh ink, the stamp is opened into its two partswithout disturbing the stencil, and the ink is applied to the inside ofthe fully exposed printing cylinder 14. When the two parts are lockedtogether the upper part 10 is free to press upon storage pad 15 which islarger than the actual printing space in 19a, but not as large as theprinting cylinder 14, leaving an empty space 28, 28.

As the ink storage pad 15 is squeezed due to pressure on the handle, theink is forced through the perforations 16 and into the printing pad 18which is inking the stencil 19. As the stamp is being used, the surplusink in the printing pad 18 which has escaped the actual printing space19a will, due to the outside pressure, return into the empty space 28,28 and into the storage pad 15 to continue its circulation, and in thisway the stamp will distribute a small amount of ink for an evenprinting, and at the same time add to the cleanliness of the stamp.

The stamp is used in a rolling motion and started on the side where thestencil is firmly attached to prongs 22, 22. The stencil having beenprepared, on the typewriter or by means of a stylus for handwriting, nowhas the backing sheet torn away in the usual manner (not shown).

The stencil is reenforced at both ends with papers 26, 26 and close tothe actual printing space 19a to prevent wear and tear of the stenciland to prevent smudging of the paper which is being printed, as thestamp is started and removed from said paper.

The reenforcing paper is turned reversely at one end to form a loop 27;a separate part 24 is inserted in the latter whereby to apply a pullupon the stencil, as formerly explained What I claim as my invention,and desire to secure by Letters Patent of the United States, is:

1. A hand stamp having a handle and comprising an upper and a lower partor printing cylinder, said upper part being provided with a front edgeand a rear edge, an extended projection disposed on said rear edge ofsaid upper part adapted to be received by a slot in the printingcylinder, said slot being provided in the side of the printing cylinderand being of a size large enough to permit the upper part to move freelydownwardly, said printing cylinder having a small depression wherebysaid extended projection engages the slot in said printing cylinder andthe front edge of said upper part is forced below said depressionthereby locking said uper and lower parts togcther, an ink absorbingstorage pad disposed between said upper and lower parts and subjected topressure by said upper and lower parts, said printing cylinder beingprovided with perforations, said printing cylinder being at each endformed with cut-away portions, a printing pad extending beyond saidprinting cylinder, prongs formed upon the latter and a stencil providedwith slots engaged by said prongs, said stencil being Wrapped around theouter surface of said printing cylinder, and means for keeping saidstencil under stress.

2. In a device as claimed in claim 1 wherein two empty spaces are formedbetween the upper and lower parts adjacent said ink storage pad therebyholding excess ink from said pad.

3. In a device as claimed in claim 1 wherein both ends of the stencilare fastened to the printing cylinder.

4. In a device as claimed in claim 3 wherein the printing cylinder maybe re-inked from the inside thereof without removing the stencil.

4- References Cited by the Examiner UNITED STATES PATENTS 559,420 5/1896St. John 10113l 1,113,634 10/1914 HopWOOd 101-125 1,626,323 4/1927Bendick 1O1-125 1,643,028 9/1927 Morlan 101l25 X 1,789,433 1/1931 Gorr101125 1,789,464 '1/1931 Harts 10l-125 2,346,023 4/1944 Gold 1011253,101,048 8/1963 Carlsen 101-425 3,138,096 6/1964 Carlsen l011253,152,541 10/1964 Carlsen 10l-125 FOREIGN PATENTS 250,081 5/1948Switzerland.

ROBERT E. PULFREY, Primary Examiner.

EUGENE R. CAPOZIO, DAVID KLEIN, Examiners.

1. A HAND STAMP HAVING A HANDLE AND COMPRISING AN UPPER AND A LOWER PARTOR PRINTING CYLINDER, SAID UPPER PART BEING PROVIDED WITH A FRONT EDGEAND A REAR EDGE, AN EXTENDED PROJECTION DISPOSED ON SAID REAR EDGE OFSAID UPPER PART ADAPTED TO BE RECEIVED BY A SLOT IN THE PRINTINGCYLINDER, SAID SLOT BEING PROVIDED IN THE SIDE OF THE PRINTING CYLINDERAND BEING OF A SIZE LARGE ENOUGH TO PERMIT THE UPPER PART TO MOVE FREELYDOWNWARDLY, SAID PRINTING CYLINDER HAVING A SMALL DEPRESSION WHEREBYSAID EXTENDED PROJECTION ENGAGES THE SLOTS IN SAID PRINTING CYLINDER ANDTHE FRONT EDGE OF SAID UPPER PART IS FORCED BELOW SAID DEPRESSIONTHEREBY LOCKING SAID UPER AND LOWER PARTS TOGETHER, AN INK ABSORBINGSTORAGE PAD DISPOSED BETWEEN SAID UPPER AND LOWER PARTS AND SUBJECTED TOPRESSURE BY SAID UPPER AND LOWER PARTS, SAID PRINTING CYLINDER BEINGPROVIDED WITH PERFORATIONS, SAID PRINTING CYLINDER BEING AT EACH ENDFORMED WITH CUT-AWAY PORTIONS, A PRINTING PAD EXTENDING BEYOND SAIDPRINTING CYLINDER, PRONGS FORMED UPON THE LATTER AND A STENCIL PROVIDEDWITH SLOTS ENGAGED BY SAID PRONGS, SAID STENCIL BEING WRAPED AROUND THEOUTER SURFACE OF SAID PRINTING CYLINDER, AND MEANS FOR KEEPING SAIDSTENCIL UNDER STRESS.